diff options
Diffstat (limited to 'lib/libc/internal/init/init.c')
| -rw-r--r-- | lib/libc/internal/init/init.c | 35 |
1 files changed, 26 insertions, 9 deletions
diff --git a/lib/libc/internal/init/init.c b/lib/libc/internal/init/init.c index b2dd8487..62678dce 100644 --- a/lib/libc/internal/init/init.c +++ b/lib/libc/internal/init/init.c @@ -1,11 +1,15 @@ +#include <alloca.h> #include <libc.h> #include <stddef.h> #include <stdint.h> #include <stdlib.h> #include <sys/cdefs.h> -extern void __init_vdso(void); -extern void __init_tls(void); +#define BUFSIZ 4096 + +extern void __libc_init_vdso(void) __attribute__((weak)); +extern void __libc_init_tls(void) __attribute__((weak)); +extern void __libc_init_io(void) __attribute__((weak)); extern int main(int, char **, char **); @@ -13,10 +17,9 @@ struct libc __libc = { 0 }; char **environ; char *__progname; -__used void __init(uintptr_t *rsp) +__used void __libc_init(uintptr_t *rsp) { char **argv; - size_t *auxv; int argc; argc = (int)(*rsp); @@ -30,13 +33,27 @@ __used void __init(uintptr_t *rsp) while (*rsp) rsp++; - auxv = (size_t *)++rsp; + __libc.auxv = (size_t *)++rsp; + + if (__libc_init_io) { + __libc_init_io(); + + __libc.stdout.buf = alloca(BUFSIZ); + __libc.stdout.buf_size = BUFSIZ; + __libc.stdout.buf_len = 0; + __libc.stdout.buf_pos = 0; + + __libc.stdin.buf = alloca(BUFSIZ); + __libc.stdin.buf_size = BUFSIZ; + __libc.stdin.buf_len = 0; + __libc.stdin.buf_pos = 0; + } - for (size_t i = 0; auxv[i]; i += 2) - __libc.auxv[auxv[i]] = auxv[i + 1]; + if (__libc_init_tls) + __libc_init_tls(); - __init_tls(); - __init_vdso(); + if (__libc_init_vdso) + __libc_init_vdso(); exit(main(argc, argv, environ)); } |